Wrench



Se t. 1, 1925; 1,551,763

R. C. MORRIS WRENCH Filed Feb. 7. 1924 IN V/z'N TOR fay/77040 C Nor/v3 iX A TTORNE m Patented Sept. 1 1925.

RAYMOND C. MORRIS, OF KALAIAZOO, MICHIGAN.

' wanton.

Application fled February 7, 1924. Serial No. 691,175.

To all whom it may concern: I

Be it known that I, RAYMOND C. MORRIS, a citizen of the United States,residing at the city and county of Kalamazoo, State of Michigan, haveinvented certain new and useful Improvements in Wrenches, of which thefollowing is aspecification.

This invention relates to improvements in wrenches.

The main object of this invention is to provide a wrench which is veryeffective in Y its gripping action and which may be used either as apipewrench or as a nut and bolt wrench.

A further object is to provide a wrench embodying these advantages whichis very simple and economical in structure and at the same time strongand durable.

Further 'objects, and objects relating to structural details, willdefinitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and meansdescribed in the following specification. The invention is clearlydefined and pointed out in the claims.

A structure which is a preferred embodi ment of my invention is clearlyillustrated in the accompanying drawing, forming a part of thisapplication, in which:

Fig. I is a side view of my'improved wrench.

Fig. II is a detail section on a line corresponding to line 22 of Figs.I and III.

Fig. III is a detail view partially in section on a line correspondingto line 3-3 of Fig. II. I

In the drawing similar reference characters refer to similar partsthroughout the several views, and the sectional views are taken lookingin the direction of the little arrows at the ends of the section lines.

Referring to the drawing, my improved wrench comprises a handle 1 havingan integral head 2 and fixed jaw 3, the jaw, in the structureillustrated, being disposed longitudinally of the handle.

The head 2 is provided with a dove-tailed way 4 for the slide portion 5of the movable jaw 6. This slide portion 5 is provided with a rack 5,the nut 7 being supported in the transverse slot 8 in the head 6 bymeans of the pivot pin 9.

The movable jaw 6 has a slot 10 therein adapted to receive the flatshank 11 of the gripping member 12, the gripping member being retainedin theslot' by the pivot 13 and having a curved bearing surface 14coacting with the bottom of the slot, as shown in.

Fig. III, This relieves the action.

The face 15 of the gripping member is preferably curved and toothed, theteeth facing outwardly. The fixed jaw has a toothed face 16.

The, ivot.13 is disposed eccentrically so that w en the gripping memberis swung rearwardly, it is carried toward the fixed aw.

A spring 17 is seated in the slot of the movable jaw, the grippingmember 12 being shouldered at 18 and cut away adjacent the shoulder toprovide a notched portion in the shank of the gripping member to receivethe spring 17 which engagesthe' shoulder pinof shearing 18, (see Fig.III) so that the gripping mem-.

ber is normally held in its forward position and when engaged with apiece of work the swinging of the handle swings the gripping member onits pivot thusmore effectively clamping the work and avoiding thenecessity ,of accurate adjustment of the movable aw.

My improved wrench is very simple and economical-to manufacture, iseflic'ient and at the same time strong and durable in proportion to theamount of material entering into the same.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. A wrench com rising a handle having a head provided wit a fixed jaw,a movable jaw slidably mounted on said head, said movable jaw beingslotted, a gripping member for said movable jaw having a notched shankportion embraced in and pivotally secured in said slot, the pivot axisof said gripping member being disposed eccentrically so that when thegripping member is swung rearwardly it-is moved toward the coactingfixed jaw, and a spring seated and completely encased in said slotreacting in the notch of said shank to hold said gripping memberyieldingly forward. V

2. A wrench comprising a handle provided with a fixed- -jaw, a' movablejaw having a bearing recess therein, a gripping member for said movablejaw having a shank portion pivotally disposed in said recess, a springseated in said recess at the inside of said shank portion having ashoulder at its said grlpping member to ooaet with the 10 inner side andacurved bearin in bearing shoulder thereof whereby said grippingengagement with the bottom 0 the recess, member is he ld yieldinglyforward.

"'the pivot axis for said gripping member be- In witness whereof; 1'.-have hereunto set ing eccentrically disposed so that when the my hand.gripping member is swung reargwardly it-is Y moved toward the coactingfixed jaw, and RAYMOND C. MORRIS.

